[GSAS-II] Residual after last refinement in the covariance tab (wR)

[Fajar I Pambudi]

Dear GSAS II experts,

I am learning GSAS II.
I am trying to perform the Le Bail fit using GSAS II for my XRD data. In
the covariance tab, there are several residuals after the last refinement.
is it correct that the wR in here is similar to Rwp that is used in other
programs?
In the covariance, we have wR, chi squared, GOF and reduced chi squared.
Could you please inform me which residual is important when using GSAS II?
In other programs and from many scientific articles, they use mostly Rwp
and Rp.

Thank you for the insight. Really appreciate the help.

Best regards
pambudi
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